Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4696996 | Preparation of polyphenylene ethers, and an apparatus for this purpose | Hermann Brandt, Hermann Fischer, Hermann Dreher, Eduard Heil, Juergen Hambrecht +6 more | 1987-09-29 |
| 4436870 | Production of molding materials containing polyphenylene ethers | Klaus Hinselmann, Herbert Naarmann, Adolf Echte, Eduard Heil, Rudi W. Reffert +1 more | 1984-03-13 |